first commit
added active admin
mapping channels
changed to use Channel object
fix @channels
replace @channels with all_channels
updated readme
added rake task to test
added stuff to gitignore
made channel_to_notify return a string
added alias model and custom emojis
fixed merged emoji option
removed alias module
add rubycas-client gem
add devise and cancan
add RailsAdmin configs for models
add alias method
update slack_name_for to Alias.slack_name_for
removed admin model, added user login via devise
use cancan for authorization